A064802 - cp's OEIS frontend

A064802 a(n) = Min { m > n | prime factorizations of m and n differ in one factor only}, a(1) = 1.

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	11
8	12
9	15
10	14
11	13
12	18
13	17
14	21
15	21
16	24
17	19
18	27
19	23
20	28
21	33
22	26
23	29
24	36
25	35
26	34
27	45
28	42
29	31
30	42
31	37
32	48
33	39
34	38
35	49
36	54
37	41
38	46
39	51
40	56
41	43
42	63
43	47
44	52
45	63
46	58
47	53
48	72
49	77
50	70
51	57
52	68
53	59
54	81
55	65
56	84
57	69
58	62
59	61
60	84
61	67
62	74
63	99
64	96
65	85
66	78
67	71
68	76
69	87
70	98
71	73

[1, 3, 5, 6, 7, 9, 11, 12, 15, 14, 13, 18, 17, 21, 21, 24, 19, 27, 23, 28, 33, 26, 29, 36, 35, 34, 45, 42, 31, 42, 37, 48, 39, 38, 49, 54, 41, 46, 51, 56, 43, 63, 47, 52, 63, 58, 53, 72, 77, 70, 57, 68, 59, 81, 65, 84, 69, 62, 61, 84, 67, 74, 99, 96, 85, 78, 71, 76, 87, 98, 73]

cp's OEIS Frontend

A064802 a(n) = Min { m > n | prime factorizations of m and n differ in one factor only}, a(1) = 1.

Table of values

List of values

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	11
8	12
9	15
10	14
11	13
12	18
13	17
14	21
15	21
16	24
17	19
18	27
19	23
20	28
21	33
22	26
23	29
24	36
25	35
26	34
27	45
28	42
29	31
30	42
31	37
32	48
33	39
34	38
35	49
36	54
37	41
38	46
39	51
40	56
41	43
42	63
43	47
44	52
45	63
46	58
47	53
48	72
49	77
50	70
51	57
52	68
53	59
54	81
55	65
56	84
57	69
58	62
59	61
60	84
61	67
62	74
63	99
64	96
65	85
66	78
67	71
68	76
69	87
70	98
71	73

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	11
8	12
9	15
10	14
11	13
12	18
13	17
14	21
15	21
16	24
17	19
18	27
19	23
20	28
21	33
22	26
23	29
24	36
25	35
26	34
27	45
28	42
29	31
30	42
31	37
32	48
33	39
34	38
35	49
36	54
37	41
38	46
39	51
40	56
41	43
42	63
43	47
44	52
45	63
46	58
47	53
48	72
49	77
50	70
51	57
52	68
53	59
54	81
55	65
56	84
57	69
58	62
59	61
60	84
61	67
62	74
63	99
64	96
65	85
66	78
67	71
68	76
69	87
70	98
71	73

n	a(n)
1	1
2	3
3	5
4	6
5	7
6	9
7	11
8	12
9	15
10	14
11	13
12	18
13	17
14	21
15	21
16	24
17	19
18	27
19	23
20	28
21	33
22	26
23	29
24	36
25	35
26	34
27	45
28	42
29	31
30	42
31	37
32	48
33	39
34	38
35	49
36	54
37	41
38	46
39	51
40	56
41	43
42	63
43	47
44	52
45	63
46	58
47	53
48	72
49	77
50	70
51	57
52	68
53	59
54	81
55	65
56	84
57	69
58	62
59	61
60	84
61	67
62	74
63	99
64	96
65	85
66	78
67	71
68	76
69	87
70	98
71	73